Hugh of Chalon (bishop of Auxerre)

[1] Hugh was the only son of Lambert of Chalon and his wife Adela (Adelais, Adelaide),[2] and was made a canon of the Cathédrale Saint-Nazaire in Autun.

[2] Hugh's sister or rather half-sister Gerberga was married to Henry I, Duke of Burgundy.

The large crypt of the Cathédrale Saint-Étienne d'Auxerre was built between 1023 and 1030,[3] when he rebuilt the earlier Romanesque structure.

It also featured a new architectural element, a disambulatory, a passage which permitted pilgrims to circulate and visit the tombs in the crypt without disturbing the religious services attended by the clergy.

[5] His successor was his sororal nephew, Count Theobald of Chalon, son of Hugh's sister Matilda (French: Mathilde).